1756-IT6I
1756-IT6I
PLC系統(tǒng)的通信接口應(yīng)包括串行和并行通信接口（RS2232C/422A/423/485）、RIO通信口、工業(yè)以太網(wǎng)、常用DCS接口等；大中型PLC通信總線（含接口設(shè)備和電纜）應(yīng)1：1冗余配置，通信總線應(yīng)符合標(biāo)準(zhǔn)，通信距離應(yīng)滿足裝置實(shí)際要求。
PLC系統(tǒng)的通信網(wǎng)絡(luò)中，上級的網(wǎng)絡(luò)通信速率應(yīng)大于1Mbps，通信負(fù)荷不大于60%。PLC系統(tǒng)的通信網(wǎng)絡(luò)主要形式有下列幾種形式：1）PC為主站，多臺同型號PLC為從站，組成簡易PLC網(wǎng)絡(luò)；2）1臺PLC為主站，其他同型號PLC為從站，構(gòu)成主從式PLC網(wǎng)絡(luò)；3）PLC網(wǎng)絡(luò)通過特定網(wǎng)絡(luò)接口連接到大型DCS中作為DCS的子網(wǎng)；4）PLC網(wǎng)絡(luò)（各廠商的PLC通信網(wǎng)絡(luò)）。
為減輕CPU通信任務(wù)，根據(jù)網(wǎng)絡(luò)組成的實(shí)際需要，應(yīng)選擇具有不同通信功能的（如點(diǎn)對點(diǎn)、現(xiàn)場總線、工業(yè)以太網(wǎng)）通信處理器。
◆ 企業(yè)名稱：廈門泰尼電氣有限公司
◆ 企業(yè)性質(zhì)： 有限責(zé)任公司
◆ 主營業(yè)務(wù)：DCS,PLC
◆ 經(jīng)營模式： 貿(mào)易
◆ 貿(mào)易地區(qū)： 全國
◆ ： 小廖女士）
◆ ：
◆
◆ :
◆ （備注“01008”收）
◆ ：
◆ 郵政編碼： 361026
CONTROL CONCEPTS MODEL 3629C 3629C-V-480V-750A-0/5V
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